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From stdpp Require Export pretty.
From iris.heap_lang Require Import lang.
From iris.prelude Require Import options.
(** * Pretty printing for HeapLang values *)
Global Instance pretty_loc : Pretty loc :=
λ l, pretty l.(loc_car).
Global Instance pretty_base_lit : Pretty base_lit :=
λ l, match l with
| LitInt z => pretty z
| LitBool b => if b then "true" else "false"
| LitUnit => "()"
| LitPoison => "<poison>"
| LitLoc l => "(loc " +:+ pretty l +:+ ")"
| LitProphecy i => "(prophecy " +:+ pretty i +:+ ")"
end.
Global Instance pretty_binder : Pretty binder :=
λ b, match b with
| BNamed x => x
| BAnon => "<>"
end.
(** Note that this instance does not print function bodies and is thus not
injective (unlike most `pretty` instances). *)
Global Instance pretty_val : Pretty val :=
fix go v :=
match v with
| LitV l => "#" +:+ pretty l
| RecV f x e =>
match f with
| BNamed f => "rec: " +:+ f +:+ " " +:+ pretty x +:+ " := <body>"
| BAnon => "λ: " +:+ pretty x +:+ ", <body>"
end
| PairV v1 v2 => "(" +:+ go v1 +:+ ", " +:+ go v2 +:+ ")"
| InjLV v => "inl (" +:+ go v +:+ ")"
| InjRV v => "inr (" +:+ go v +:+ ")"
end.
Global Instance pretty_un_op : Pretty un_op :=
λ op, match op with
| NegOp => "~"
| MinusUnOp => "-"
end.
Global Instance pretty_bin_op : Pretty bin_op :=
λ op, match op with
| PlusOp => "+"
| MinusOp => "-"
| MultOp => "*"
| QuotOp => "`quot`"
| RemOp => "`rem`"
| AndOp => "&"
| OrOp => "|"
| XorOp => "`xor`"
| ShiftLOp => "<<"
| ShiftROp => ">>"
| LeOp => "≤"
| LtOp => "<"
| EqOp => "="
| OffsetOp => "+ₗ"
end .